热轧带钢自适应穿带策略的优化

热轧带钢生产过程中,为保证穿带自适应正常投用,需要准确区分影响轧制力预报的各个因素.本文通过计算影响系数的方式分析了轧制力的各个影响因素,以此为基础建立了线性方程组,并使用最小二乘法求解得到了准确的预报偏差量.最后通过校核机架对自适应规程进行校核,保证了自适应规程的准确性.本优化策略已成功应用于某热连轧生产线,实际生产数据表明,采用穿带自适应优化策略之后轧件的头部厚度控制精度得到了显著提高.

Optimization of Adaptive Threading Strategy in Hot Strip Rolling

In the hot strip rolling process， the factors which affect the rolling force prediction need to be determined for the adaptive threading strategy. These factors were analyzed by calculating the influence coefficients， then linear equations were developed. The equations were solved by the least square method ，with the prediction deviations obtained. The adaptive threading schedule was verified by the test stand， which can ensure the schedule validity. The optimized strategy was successfully applied to a tandem hot mill. The application results show that the control precision of thickness is enhanced to a high level.